Tropical Storm Isaac BriefingTropical Storm Isaac Briefing

August 30, 2012100 AM CDT

National Weather ServiceWeather Forecast Office

Slidell, LA

August 30, 2012100 AM CDT

National Weather ServiceWeather Forecast Office

Slidell, LA

Current SatelliteCurrent Satellite

Tropical Storm IsaacTropical Storm Isaac

Watches/WarningsWatches/Warnings

Tropical Storm Isaac Wind Forecast

Tropical Storm Isaac Wind Forecast

Wind ImpactsWind Impacts

Location Projected end of frequent TS force gusts

MS Gulf Coast and Pearl River CountyLower St. Bernard/Lower Plaquemines

2 am – 3 am

South Shore/North Shore 3 am – 4 am

Baton Rouge AreaPike and Walthall Counties

5 am – 7 am

Pointe Coupee & W. Feliciana ParishesWilkinson & Amite Counties

8 am – 10 am

• Winds gradually decreasing from east to west beginning late this evening

Storm Tide LevelsStorm Tide Levels

MS Coast: Tide levels were receding this evening and should continue to do so.

SE LA Coast: Tide levels will begin to recede slowly overnight.

Lake Pontchartrain/Maurepas: Tides 5 to 8 feet to remain at these elevated levels overnight before receding slowly later today. Positive anomaly tide levels will continue into the weekend.

MS Coast: Tide levels were receding this evening and should continue to do so.

SE LA Coast: Tide levels will begin to recede slowly overnight.

Lake Pontchartrain/Maurepas: Tides 5 to 8 feet to remain at these elevated levels overnight before receding slowly later today. Positive anomaly tide levels will continue into the weekend.

Current Storm Tide LevelsCurrent Storm Tide Levels

Rainfall through FridayRainfall through Friday

Tornado ThreatTornado Threat

SummarySummary• TROPICAL STORM WARNING is in effect for all of SE Louisiana and SW

and coastal MS

• All of southeast LA and southern/coastal MS will continue to be affected by this storm.

• Strong winds will begin to subside late this evening and overnight tonight

• Storm tides will remain steady or fall slightly through tonight on the open coast and remain elevated in Lakes Pontchartrain and Maurepas before beginning to recede slowly Thursday

• Unofficial reports of up to 22 inches of rain have been recorded so far in isolated areas. Widespread significant street flooding is occurring across many areas. Heavy rain will continue through tonight and additional flash flooding is expected across the area.

• TROPICAL STORM WARNING is in effect for all of SE Louisiana and SW and coastal MS

• All of southeast LA and southern/coastal MS will continue to be affected by this storm.

• Strong winds will begin to subside late this evening and overnight tonight

• Storm tides will remain steady or fall slightly through tonight on the open coast and remain elevated in Lakes Pontchartrain and Maurepas before beginning to recede slowly Thursday

• Unofficial reports of up to 22 inches of rain have been recorded so far in isolated areas. Widespread significant street flooding is occurring across many areas. Heavy rain will continue through tonight and additional flash flooding is expected across the area.

Next UpdateNext Update

• Emails with updated slides will be sent following each advisory.

• Next conference call will be 2 PM CDT today.

• Emails with updated slides will be sent following each advisory.

• Next conference call will be 2 PM CDT today.

Contact InformationContact Information

• Don’t hesitate to call or email us with any questions

• (985) 649–0429, (985) 645-0357

– Extension 4 to speak to a forecaster

• NWS Chat

– If you don’t use software(i.e. pidgin) please log into NWSCHAT live

• https://nwschat.weather.gov/live/

• This helps bypass the third party security issues and runs in your web browser

• E-mail: SR-LIX.Forecasters@noaa.gov

• http://www.srh.noaa.gov/lix/?n=embrief2

• http://www.facebook.com/US.NationalWeatherService.NewOrleans.gov#!/US.NationalWeatherService.NewOrleans.gov

• Follow us on Twitter: @NWSNewOrleans

• Don’t hesitate to call or email us with any questions

• (985) 649–0429, (985) 645-0357

– Extension 4 to speak to a forecaster

• NWS Chat

– If you don’t use software(i.e. pidgin) please log into NWSCHAT live

• https://nwschat.weather.gov/live/

• This helps bypass the third party security issues and runs in your web browser

• E-mail: SR-LIX.Forecasters@noaa.gov

• http://www.srh.noaa.gov/lix/?n=embrief2

• http://www.facebook.com/US.NationalWeatherService.NewOrleans.gov#!/US.NationalWeatherService.NewOrleans.gov

• Follow us on Twitter: @NWSNewOrleans